Antibacterial and wear-resistant heat transfer silicone rubber and preparation method thereof

Abstract

The present application relates to the technical field of thermal transfer silicone, and more specifically, to an antibacterial and wear-resistant heat transfer silicone for heat transfer printing and a preparation method thereof. The silicone is prepared from the following raw materials in parts by weight: 20-30 parts of dimethyl vinyl silicone oil, 10-15 parts of silicone-modified acrylic resin, 1-5 parts of surfactant, 5-10 parts of nano-scale inorganic filler, 2-3 parts of antibacterial agent, 4-6 parts of dispersant and 1-2 parts of cross-linking agent. The antibacterial and wear-resistant heat transfer silicone for heat transfer printing prepared by the above formula has good antibacterial effect, wear resistance and adhesion, is suitable for children's clothing, and reduces the possibility of children's contact with bacteria.

Description

Technical Field

[0001] The present application relates to the technical field of thermal transfer silicone, and more specifically, to an antibacterial and wear-resistant heat transfer silicone and a preparation method thereof. Background Art

[0002] Heat transfer is a type of garment printing process that uses thermal transfer technology to print patterns on garments. It is mainly used in T-shirts, T-shirts, promotional T-shirts, jackets, jeans, children's clothing, plush toys, sportswear, etc.

[0003] Among them, thermal transfer dimethyl vinyl silicone oil technology allows colorful patterns and texts to be printed on children's clothing. These patterns and texts can be cartoon characters, animals, letters, numbers, etc., which can attract children's attention and increase the fun and attractiveness of clothing. Therefore, silicone material is one of the main raw materials for heat transfer of children's clothing.

[0004] However, the current thermal transfer silicone has poor antibacterial properties and is prone to breeding bacteria. When children wear clothes with thermal transfer silicone patterns, they like to touch or scratch the patterns with their hands. In this process, the bacteria on the thermal transfer silicone patterns will be transferred to the children's hands. When children touch other parts of the body with their hands, it is easy to cause skin problems. Therefore, it is necessary to design a thermal transfer silicone that is antibacterial and wear-resistant. Summary of the invention

[0005] In order to solve the problem that thermal transfer silicone is prone to bacterial growth, the present application provides an antibacterial and wear-resistant heat transfer silicone and a preparation method thereof.

[0006] In the first aspect, the present application provides an antibacterial and wear-resistant heat transfer silicone rubber, which adopts the following technical scheme: an antibacterial and wear-resistant heat transfer silicone rubber, which is prepared from the following raw materials in parts by weight:

[0007] 20-30 parts of dimethyl vinyl silicone oil

[0008] 10-15 parts of silicone modified acrylic resin

[0009] Surfactant 1-5 parts

[0010] 5-10 parts of nano-scale inorganic filler

[0011] 2-3 parts of antibacterial agent

[0012] Dispersant 4-6 parts

[0013] 1-2 parts of crosslinking agent.

[0014] By adopting the above technical solution, the prepared antibacterial and wear-resistant heat transfer silicone has good antibacterial effect and wear resistance, which can reduce the possibility of children being exposed to bacteria.

[0015] In the present application, by adding an antibacterial agent, the heat transfer silicone rubber has a certain antibacterial property, reducing the growth of bacteria. At the same time, the surfactant improves the dispersion properties of dimethyl vinyl silicone oil and silicone-modified acrylic resin, making the antibacterial agent more evenly distributed in the silicone system, further enhancing the antibacterial effect of the antibacterial agent.

[0016] Dimethylvinyl silicone oil has good elasticity and softness, which allows the antibacterial and wear-resistant heat transfer silicone to be in various shapes, but the hardness is low and the friction resistance is poor after curing, and the pattern is easily damaged during use. In this application, by using dimethylvinyl silicone oil and silicone-modified acrylic resin together, the wear resistance of the thermal transfer silicone can be greatly improved, making the pattern less likely to be damaged. At the same time, the water washability of the antibacterial and wear-resistant heat transfer silicone can also be improved, and the good antibacterial effect can be maintained after multiple washings. Through the action of organic modified acrylic resin, the ability of the antibacterial and wear-resistant heat transfer silicone to adhere to the target material can be further improved, forming a clear, durable and not easy to fall off pattern.

[0017] Nano-scale inorganic fillers can significantly improve the hardness and wear resistance of antibacterial and wear-resistant heat transfer silicone. Nano-scale fillers are small in size and can be more evenly dispersed in the dimethyl vinyl silicone oil matrix to form a denser structure and effectively resist external wear. Dispersants help to improve the dispersion of nano-inorganic fillers in dimethyl vinyl silicone oil and silicone-modified acrylic resin, further improving the wear resistance of antibacterial and wear-resistant heat transfer silicone.

[0018] The cross-linking agent promotes the cross-linking reaction between dimethyl vinyl silicone oil and silicone-modified acrylic resin to form a more stable structure, thereby obtaining heat transfer silicone with good antibacterial properties and good wear resistance.

[0019] Preferably, the antibacterial agent is prepared by the following preparation method:

[0020] A: Heat the zeolite powder to 400-500°C, add it to the polyvinyl pyrrolidone solution, stir it, then add the silane coupling agent, stir it, and obtain a zeolite powder suspension;

[0021] B: Mix the zeolite powder suspension, silver nitrate and reducing agent, heat to 40-50°C, and perform ultrasonic treatment for 5-6 hours, filter, rinse and dry to obtain the silver-loaded zeolite powder;

[0022] C: Dissolve hexadecyltrimethylammonium bromide in isopropanol, and then soak the silver-loaded zeolite powder therein for 2-3 hours, recover the isopropanol, and obtain an antibacterial agent.

[0023] By adopting the above technical solution, the prepared antibacterial agent has good antibacterial effect and long antibacterial time, which can effectively reduce the breeding of bacteria in thermal transfer silicone and improve its safety in use.

[0024] In step A, the zeolite powder is heated to 400-500°C to remove moisture and organic impurities therein, while increasing its specific surface area and porosity, making it easier to adsorb and load silver. The addition of polyvinyl pyrrolidone solution and silane coupling agent can form an organic-inorganic composite layer on the surface of the zeolite powder. Among them, one end of the silane coupling agent reacts with the hydroxyl group on the surface of the zeolite powder, and the other end carries a functional group that can react with organic substances, which helps the uniform distribution and stable attachment of silver ions in subsequent steps. In step B, the silver ions are reduced to silver and attached to the surface of the zeolite powder by the action of the reducing agent. Ultrasonic treatment helps the uniform distribution of silver on the surface of the zeolite powder and increases the antibacterial effect of the antibacterial agent. Hexadecyltrimethylammonium bromide is a cationic surfactant. In step C, it can form a stable complex with silver nanoparticles, further increasing the stability of silver nanoparticles on the surface of the zeolite powder, improving the antibacterial effect and prolonging the antibacterial time.

[0025] Preferably, the weight parts of the raw materials used to prepare the antibacterial agent are as follows:

[0026] Zeolite powder 5-8 parts

[0027] Polyvinyl pyrrolidone solution 10-15 parts

[0028] Silane coupling agent 2-4 parts

[0029] Silver nitrate 4-6 parts

[0030] 3-5 parts reducing agent

[0031] 2-3 parts of hexadecyltrimethylammonium bromide

[0032] 10-15 parts of isopropyl alcohol.

[0033] By adopting the above technical solution, the amount of raw materials used in preparing the antibacterial agent is optimized, so that the zeolite powder is loaded with more silver, and the silver can be stably attached to the surface of the zeolite powder, further improving the antibacterial effect of the antibacterial agent and extending its antibacterial time.

[0034] Preferably, the polyvinyl pyrrolidone solution is obtained by mixing polyvinyl pyrrolidone and water in a weight ratio of 1:(5-10).

[0035] Preferably, the molecular weight of polyvinyl pyrrolidone is 50,000-100,000.

[0036] By adopting the above technical solution, the polyvinyl pyrrolidone solution has a certain viscosity, which can make the zeolite powder more evenly dispersed in the polyvinyl pyrrolidone solution, improve the dispersion of the zeolite powder, and facilitate the subsequent attachment of silver.

[0037] Preferably, the vinyl content of the dimethyl vinyl silicone oil is 0.1-1 mol%, and the viscosity at 25° C. is 10,000-100,000 mPa.s.

[0038] By adopting the above technical scheme, the ethylene content and molecular weight of dimethyl vinyl silicone oil are optimized, the reaction of the cross-linking agent with dimethyl vinyl silicone oil and silicone-modified acrylic resin is enhanced, and the cross-linking density of the antibacterial and wear-resistant heat transfer silicone is further improved, thereby improving the wear resistance of dimethyl vinyl silicone oil.

[0039] Preferably, the crosslinking agent is at least one of terminal hydrogen-containing polymethyl hydrogen siloxane and side hydrogen-containing polymethyl hydrogen siloxane.

[0040] By adopting the above technical scheme and optimizing the type of cross-linking agent, the cross-linking density between dimethyl vinyl silicone oil and silicone-modified acrylic resin can be increased, thereby improving the wear resistance and adhesion properties of the antibacterial and wear-resistant heat transfer silicone.

[0041] Preferably, each portion of the surfactant is obtained by mixing sodium dodecyl sulfate and glycerol fatty acid ester in a weight ratio of 3:(4-6).

[0042] By adopting the above technical solution, the type and amount of surfactant are optimized to further improve the antibacterial and wear-resistant heat transfer silicone rubber. Sodium dodecyl sulfonate and glycerol fatty acid ester both have certain antibacterial effects. At the same time, the synergistic effect of sodium dodecyl sulfonate and glycerol fatty acid ester can improve the fluidity of antibacterial and wear-resistant heat transfer silicone rubber during the heat transfer process, making the heat transfer more uniform and clear.

[0043] Preferably, the nanoscale inorganic filler is obtained by mixing an inorganic filler with an average particle size of 20-30 nm, an inorganic filler with an average particle size of 50-100 nm, and an inorganic filler with an average particle size of 150-200 nm.

[0044] Preferably, the weight ratio of the inorganic filler with an average particle size of 20-30 nm, the inorganic filler with an average particle size of 50-100 nm and the inorganic filler with an average particle size of 150-200 nm is (4-6):(2-4):1.

[0045] By adopting the above technical solution, the wear resistance of antibacterial and wear-resistant heat transfer silicone is improved. Inorganic nanofillers with different average particle sizes are used in combination, and smaller particles can fill the gaps between larger particles to form a more compact stacking structure, making the wear resistance of antibacterial and wear-resistant heat transfer silicone better.

[0046] In a second aspect, the present application provides a method for preparing antibacterial and wear-resistant heat transfer silicone rubber, which adopts the following technical scheme: A method for preparing antibacterial and wear-resistant heat transfer silicone rubber, comprising the following preparation steps:

[0047] S1. Mix the nano-scale solid filler, the dispersant and the dimethyl vinyl silicone oil, and stir them at a stirring speed of 800-1000 r / min and a temperature of 60-80° C. to obtain a mixture;

[0048] S2. Stir the mixture, silicone-modified acrylic resin, surfactant, cross-linking agent and antibacterial agent until they are evenly mixed, then screen-print them onto release paper, and then bake them at 80-120°C for 10-15 minutes to obtain antibacterial and wear-resistant heat transfer silicone.

[0049] By adopting the above technical solution, various raw materials can be fully and evenly mixed, and then the mixture is screen-printed onto release paper and solidified by baking, ensuring that the antibacterial and wear-resistant heat transfer silicone can be stably transferred to the target material at high temperature, thereby realizing thermal transfer.

[0050] In summary, this application has the following beneficial effects:

[0051] 1. The present application prepares antibacterial and wear-resistant heat transfer silicone rubber by combining dimethyl vinyl silicone oil, silicone-modified acrylic resin, surfactant, nano-scale inorganic filler, antibacterial agent, dispersant and cross-linking agent. The antibacterial and wear-resistant heat transfer silicone rubber has good antibacterial effect and wear resistance, and can reduce the possibility of children being exposed to bacteria.

[0052] 2. In the present application, zeolite powder is activated at 400-500°C, and then placed in a polyvinyl pyrrolidone solution to react with a silane coupling agent to form an organic-inorganic composite layer on the surface of the zeolite powder. The zeolite powder suspension, silver nitrate and a reducing agent are then reacted to reduce silver ions to silver and attach to the surface of the zeolite powder. Finally, hexadecyltrimethylammonium bromide is reacted with the silver-loaded zeolite powder to form a stable complex with the silver nanoparticles, thereby further increasing the stability of the silver nanoparticles on the surface of the zeolite powder, improving the antibacterial effect and prolonging the antibacterial time. DETAILED DESCRIPTION

[0053] Example

[0054] The antibacterial agent was purchased from Beijing Fulaisibo Technology Development Co., Ltd., model number is AD-3.

[0055] The side hydrogen-containing polymethyl hydrogen siloxane was purchased from Ningbo Runhe High-tech Materials Technology Co., Ltd., model RH-H502.

[0056] Example 1

[0057] An antibacterial and wear-resistant heat transfer silicone rubber is prepared by the following preparation method:

[0058] S1, mixing 50 g of nano-scale solid filler (silicon dioxide), 40 g of dispersant (polydiallyldimethylammonium chloride) and 200 g of dimethylvinyl silicone oil, stirring at a stirring speed of 800 r / min and a temperature of 60° C. to obtain a mixture;

[0059] S2. Stir the mixture, 100 g of silicone-modified acrylic resin, 10 g of surfactant (sodium dodecyl sulfate), 10 g of cross-linking agent and 20 g of antibacterial agent until evenly mixed, then screen-print onto release paper, and then bake at 80°C for 10 minutes to obtain antibacterial and wear-resistant heat transfer silica gel.

[0060] The vinyl content in dimethylvinyl silicone oil is 0.1 mol % and the viscosity at 25°C is 10,000 mPa.s.

[0061] The silicone-modified acrylic resin was purchased from Hubei Longsheng Sihai New Materials Co., Ltd., model SH-024.

[0062] The crosslinking agent was hydrogen-terminated polymethylhydrogensiloxane, purchased from Guangdong Wengjiang Chemical Reagent Co., Ltd., model Mn 4,000.

[0063] The difference between Example 2-3 and Example 1 is that the types, amounts and experimental parameters of some raw materials for preparing antibacterial and wear-resistant heat transfer silicone rubber are different. The specific differences are shown in Table 1:

[0064] Table 1 Types, dosages and experimental parameters of the raw materials for preparing antibacterial and wear-resistant heat transfer silicone rubber in Examples 1-3

[0065]

[0066]

[0067] Example 4

[0068] An antibacterial and wear-resistant heat transfer silica gel. The difference between this embodiment and embodiment 1 is that the antibacterial agent is prepared by the following preparation method:

[0069] A: 50 g of zeolite powder was heated to 400°C, and then added to 100 g of polyvinyl pyrrolidone solution, stirred, and then 20 g of silane coupling agent (γ-(methacryloyloxy)propyltrimethoxysilane) was added, stirred to obtain a zeolite powder suspension;

[0070] B: Mix the zeolite powder suspension, 40 g of silver nitrate and 30 g of reducing agent (ammonium formate), heat to 40°C, and ultrasonically treat for 5 h, filter, rinse, and dry to obtain zeolite powder loaded with silver;

[0071] C: Dissolve 20 g of hexadecyltrimethylammonium bromide in 100 g of isopropanol, and then soak the silver-loaded zeolite powder therein for 2 hours, recover the isopropanol, and obtain an antibacterial agent.

[0072] The polyvinyl pyrrolidone solution is obtained by mixing 16.7 g of polyvinyl pyrrolidone and 83.3 g of water in a weight ratio of 1:5.

[0073] The molecular weight of polyvinyl pyrrolidone is 50,000.

[0074] Example 5

[0075] An antibacterial and wear-resistant heat transfer silica gel. The difference between this embodiment and embodiment 1 is that the antibacterial agent is prepared by the following preparation method:

[0076] A: 80 g of zeolite powder was heated to 500°C, and then added to 150 g of polyvinyl pyrrolidone solution, stirred, and then 40 g of silane coupling agent (γ-aminopropyltriethoxysilane) was added, stirred to obtain a zeolite powder suspension;

[0077] B: Mix the zeolite powder suspension, 60 g of silver nitrate and 50 g of reducing agent (sodium sulfite), heat to 50°C, and perform ultrasonic treatment for 6 hours, filter, rinse and dry to obtain zeolite powder loaded with silver;

[0078] C: 30 g of hexadecyltrimethylammonium bromide was dissolved in 150 g of isopropanol, and then the silver-loaded zeolite powder was immersed therein for 3 hours, and the isopropanol was recovered to obtain an antibacterial agent.

[0079] The polyvinyl pyrrolidone solution is obtained by mixing 13.6 g of polyvinyl pyrrolidone and 136.4 g of water in a weight ratio of 1:10.

[0080] The molecular weight of polyvinyl pyrrolidone is 100,000.

[0081] Example 6

[0082] An antibacterial and wear-resistant heat transfer silica gel for heat transfer printing. The difference between this embodiment and embodiment 4 is that the polyvinyl pyrrolidone solution is replaced with pure water in step A, and the other raw material types, amounts and experimental parameters are consistent with those in embodiment 4.

[0083] Example 7

[0084] An antibacterial and wear-resistant heat transfer silica gel for heat transfer printing. The difference between this embodiment and embodiment 4 is that zeolite powder is omitted in step A, and the types, amounts and experimental parameters of other raw materials are consistent with those of embodiment 4.

[0085] Example 8

[0086] An antibacterial and wear-resistant heat transfer silica gel for heat painting. The difference between this embodiment and embodiment 4 is that cetyltrimethylammonium bromide is not added in step C, and the other raw material types, amounts and experimental parameters are consistent with those in embodiment 4.

[0087] Example 9

[0088] An antibacterial and wear-resistant hot stamping thermal transfer silica gel. The difference between this embodiment and embodiment 1 is that the silicon dioxide is obtained by mixing 28.6 g of silicon dioxide with an average particle size of 20 nm, 14.3 g of silicon dioxide with an average particle size of 50 nm, and 7.1 g of silicon dioxide with an average particle size of 150 nm in a weight ratio of 4:2:1.

[0089] Example 10

[0090] An antibacterial and wear-resistant hot stamping thermal transfer silica gel. The difference between this embodiment and embodiment 4 is that the silicon dioxide is obtained by mixing 27.3 g of silicon dioxide with an average particle size of 30 nm, 18.2 g of silicon dioxide with an average particle size of 100 nm, and 4.5 g of silicon dioxide with an average particle size of 200 nm in a weight ratio of 6:4:1.

[0091] Embodiment 11

[0092] An antibacterial and wear-resistant heat transfer silicone for hot stamping. The difference between this embodiment and embodiment 1 is that the surfactant is obtained by mixing 4.3 g of sodium dodecyl sulfate and 5.7 g of glycerol fatty acid ester in a weight ratio of 3:4, and the other raw material types, amounts and experimental parameters are consistent with those in embodiment 1.

[0093] Example 12

[0094] An antibacterial and wear-resistant hot stamping thermal transfer silica gel. The difference between this embodiment and embodiment 4 is that the surfactant is obtained by mixing 3.3 g of sodium dodecyl sulfate and 6.7 g of glycerol fatty acid ester in a weight ratio of 3:6, and the other raw material types, amounts and experimental parameters are consistent with those in embodiment 4.

[0095] Comparative Example

[0096] Comparative Example 1

[0097] An antibacterial and wear-resistant heat transfer silicone rubber. The difference between this embodiment and embodiment 1 is that modified acrylic resin is used instead of silicone-modified acrylic resin of equal mass, and the other raw material types, amounts and experimental parameters are consistent with those in embodiment 1.

[0098] Epoxy modified acrylic resin was purchased from Shandong Huling New Materials Co., Ltd., model number 6225.

[0099] Comparative Example 2

[0100] An antibacterial and wear-resistant heat transfer silicone rubber. The difference between this embodiment and embodiment 1 is that the surfactant is omitted, and the types, amounts and experimental parameters of other raw materials are consistent with those of embodiment 1.

[0101] Comparative Example 3

[0102] An antibacterial and wear-resistant heat transfer silicone for heat transfer printing. The difference between this embodiment and embodiment 1 is that the antibacterial agent is omitted, and the types, amounts and experimental parameters of other raw materials are consistent with those of embodiment 1.

[0103] Performance testing

[0104] For Examples 1-12 and Comparative Examples 1-3, 100 g of antibacterial and wear-resistant heat transfer silicone was prepared and mixed with 1 g of catalyst (platinum catalyst purchased from Wuhan Lanabai Pharmaceutical Chemical Co., Ltd., item number EF234243) to obtain a sample, which was then subjected to antibacterial tests, antibacterial durability tests, wear resistance tests, and bonding performance tests.

[0105] Detection method / test method

[0106] The thickness and size of the antibacterial and wear-resistant heat transfer silicone samples were the same in all tests.

[0107] Antibacterial test: According to GB / T21866-2008 "Determination of antibacterial properties and antibacterial effects of antibacterial paint films", prepare samples and measure the antibacterial rate of standard samples.

[0108] Antibacterial persistence test: The antibacterial wear-resistant heat transfer silicone rubber prepared in Examples 1-12 and Comparative Examples 1-3 were placed in a blender, water was added, the speed was adjusted to 200 r / min, stirred for 1 hour each time, dried, stirred 100 times, and then the antibacterial performance of the antibacterial silicone rubber samples was tested according to the above-mentioned antibacterial performance test method.

[0109] Wear resistance test: According to GB / T1689-2014 "Determination of wear resistance of vulcanized rubber" (using Akron abrasion tester), prepare the sample and measure the mass m1 before and after wear m2 of the sample, calculate (m2-m1) / m1*100%, and get the wear rate.

[0110] Adhesive properties: The antibacterial and wear-resistant heat transfer silicone rubber prepared in Examples 1-12 and Comparative Examples 1-3 was pressed onto a PU cloth (purchased from Shanghai Chengpin Leather Products Co., Ltd., thickness 0.08 mm) using a heat transfer machine at 160°C, and the transfer time was 15s, and then heated to 100°C, and then placed at a temperature of 30°C. Drying was repeated 20 times, and the pattern was observed for bubbles, delamination, etc. The experimental data are shown in Table 2:

[0111] Table 2 Experimental data of Examples 1-12 and Comparative Examples 1-3

[0112]

[0113] It can be seen from Examples 1-12 and Comparative Examples 1-3 in combination with Table 2 that the present application prepares antibacterial and wear-resistant heat transfer silicone rubber by using dimethyl vinyl silicone oil, silicone-modified acrylic resin, surfactant, nano-scale inorganic filler, antibacterial agent, dispersant and cross-linking agent together, which can effectively improve the antibacterial, wear resistance and bonding properties of the antibacterial and wear-resistant heat transfer silicone rubber, making it more suitable for children's clothing.

[0114] Comparing Example 1 with Comparative Examples 1-3, the values ​​of Comparative Examples 1-3 decreased in the antibacterial test and the antibacterial durability test, the values ​​of Comparative Examples 1-2 increased in the wear resistance test, and cracks appeared in Comparative Examples 1-2 in the bonding performance test, indicating that the antibacterial, wear resistance and bonding properties of the antibacterial and wear-resistant heat transfer silicone can be improved by adding appropriate amounts of silicone-modified acrylic resin, surfactant and antibacterial agent.

[0115] By comparing Example 1 with Examples 4-5, the values ​​of Examples 4-5 in the antibacterial test and the antibacterial persistence test were significantly improved;

[0116] By comparing Example 4 with Examples 6-8, the values ​​of Examples 6-8 in the antibacterial test and the antibacterial persistence test are significantly lower than those of Example 4;

[0117] It can be seen from Examples 1 and 4-8 that the antibacterial agent obtained by the preparation method of the present application can effectively improve the antibacterial properties of the antibacterial and wear-resistant heat transfer silicone and can effectively prolong its antibacterial time.

[0118] Comparing Example 1 with Examples 9-10, the wear rate of Examples 9-10 was significantly reduced in the wear resistance test, indicating that the wear resistance of the antibacterial and wear-resistant heat transfer silicone rubber can be effectively improved by optimizing the combination of inorganic fillers with different average particle sizes.

[0119] Comparing Example 1 with Examples 11-12, the values ​​of Examples 11-12 in the antibacterial test and the antibacterial durability test increased, and the wear rate of Examples 11-12 in the wear resistance test decreased, indicating that the antibacterial and wear-resistant heat transfer silicone can be improved by mixing sodium dodecyl sulfate and glycerol fatty acid ester in a certain proportion.

[0120] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An antibacterial and wear-resistant heat transfer silicone, characterized in that: The method is prepared by including the following raw materials in parts by weight: 20-30 parts of dimethyl vinyl silicone oil 10-15 parts of silicone modified acrylic resin Surfactant 1-5 parts 5-10 parts of nano-scale inorganic filler 2-3 parts of antibacterial agent Dispersant 4-6 parts 1-2 parts of cross-linking agent; The antibacterial agent is prepared by the following preparation method: A: Heat the zeolite powder to 400-500°C, add it to the polyvinyl pyrrolidone solution, stir it, then add the silane coupling agent, stir it, and obtain a zeolite powder suspension; B: Mix the zeolite powder suspension, silver nitrate and reducing agent, heat to 40-50°C, and perform ultrasonic treatment for 5-6 hours, filter, rinse and dry to obtain the silver-loaded zeolite powder; C: dissolving hexadecyltrimethylammonium bromide in isopropanol, and then immersing the silver-loaded zeolite powder therein for 2-3 hours, recovering the isopropanol, and obtaining an antibacterial agent; The weight parts of the raw materials used to prepare the antibacterial agent are as follows: Zeolite powder 5-8 parts Polyvinyl pyrrolidone solution 10-15 parts Silane coupling agent 2-4 parts Silver nitrate 4-6 parts 3-5 parts reducing agent 2-3 parts of hexadecyltrimethylammonium bromide 10-15 parts of isopropyl alcohol; The polyvinyl pyrrolidone solution is obtained by mixing polyvinyl pyrrolidone and water in a weight ratio of 1: (5-10); The vinyl content of the dimethyl vinyl silicone oil is 0.1-1 mol%, and the viscosity at 25°C is 10,000-100,000 mPa.s; Each part of the surfactant is obtained by mixing sodium dodecyl sulfate and glycerol fatty acid ester in a weight ratio of 3: (4-6); The crosslinking agent is at least one of terminal hydrogen-containing polymethyl hydrogen siloxane or side hydrogen-containing polymethyl hydrogen siloxane; The nanometer-scale inorganic filler is obtained by mixing an inorganic filler with an average particle size of 20-30 nm, an inorganic filler with an average particle size of 50-100 nm, and an inorganic filler with an average particle size of 150-200 nm; The weight ratio of the inorganic filler with an average particle size of 20-30 nm, the inorganic filler with an average particle size of 50-100 nm and the inorganic filler with an average particle size of 150-200 nm is (4-6): (2-4):

1.

2. A method for preparing the antibacterial and wear-resistant heat transfer silicone rubber as claimed in claim 1, characterized in that: The steps include: S1. Mix the nano-scale solid filler, the dispersant and the dimethyl vinyl silicone oil, and stir them at a stirring speed of 800-1000 r / min and a temperature of 60-80° C. to obtain a mixture; S2, stirring the mixture, the silicone-modified acrylic resin, the surfactant, the cross-linking agent and the antibacterial agent, stirring and mixing evenly, and then screen printing on the release paper, and then baking at 80-120° C. for 10-15 minutes to obtain antibacterial and wear-resistant heat transfer silicone rubber; 100g of antibacterial and wear-resistant heat transfer silicone is mixed and cured with 1g of catalyst, and the catalyst is a platinum catalyst.

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